Intec Colourphyll K Liquid FertiliserIntec Colourphyll K is a stabilised nitrogen with potassium, iron and magnesium to assist in the production of excess chlorophyll for a longer lasting deep green appearance and high quality growth. The product is ideal for application throughout the whole year. 15% Nitrogen, 10% Potassium, 4% Iron, 1% Magnesium Stabilised nitrogen for efficient release and reduced loss. Potassium in a highly available citrate form. Iron and magnesium for chlorophyll